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68results about How to "Great convenience" patented technology

Test board for calibrating electronic compass, and calibration method

The invention discloses a test board for calibrating an electronic compass. The test board comprises a flat plate and a side plate fixed on the flat plate, the side plate is a polygon formed by combining n side walls, the side walls are perpendicular to the flat plate, and the number N of the side walls is equal to or more than 3. The electron compass to be calibrated is arranged on the flat plate, and is arranged close to the outer side of the side walls, the magnetic field value and the angle value of each point, measured by a magnetometer, are recorded, obtained data is processed through aninterpolation technology to obtain a corresponding relationship between the magnetic field and the angle, and a corresponding angle is solved according to the magnetic field value measured by the magnetometer through fusing the corresponding relationship with a roll angle and pitch angle which are measured by an accelerometer, so planar two-dimensional high-precision calibration requirements arerealized, and three-dimensional total-space stereo high-precision calibration requirements are also realized. The test board has the advantages of simple structure, convenience in operation, no need of a complicated test device, brining of great convenience for the use of a end user, and realization of self calibration of the electronic compass by the terminal user.
Owner:BEWIS TECH

Minimally-invasive perforation surgical tool and machining method thereof

The invention provides a minimally-invasive perforation surgical tool. The minimally-invasive perforation surgical tool comprises a path-opening sleeve and a path-opening drill bit arranged in the path-opening sleeve, wherein the path-opening sleeve comprises a sleeve body and a needle core seat which are connected mutually; the path-opening drill bit comprises a rod body and a drill bit and also comprises an elastic connecting rod, and the drill bit is connected with the rod body by the elastic connecting rod; a drill bit outlet is arranged on the sleeve body, the rod body is arranged in the sleeve body and the drill bit extends out of the drill bit outlet. The invention also provides a machining method of the minimally-invasive perforation surgical tool, which is used for manufacturing the path-opening sleeve and the path-opening drill bit; the path-opening sleeve is an integrally-molded member and is made of additional materials; the path-opening drill bit is an integrally-molded member and is manufactured by machining and ground, and heat treatment is carried out on the path-opening drill bit. The minimally-invasive perforation surgical tool and the machining method provided by the invention have the beneficial effects that the perforation efficiency is high, the perforation infection rate is reduced, the incision quantity is reduced, the safe and high-efficiency effects are achieved and the parts are integrally molded.
Owner:GUANGZHOU HUATAI 3D MATERIAL MFG TECH CO LTD

Combined cabinet

The invention discloses a combined cabinet which comprises at least four columns, an upper frame module and a lower frame module. The upper frame module comprises an upper frame, an upper connecting seat group and at least four upper fixing grooves, the upper connecting seat group is combined with the upper frame and comprises a plurality of upper connecting seats, the upper fixing grooves are formed after the upper frame is combined with the upper connecting seats, an end of an optional column can be inserted into each upper fixing groove, and each column and the corresponding upper fixing groove can be relatively fixedly positioned by the aid of at least one upper locking assembly. The lower frame module comprises a lower frame, a lower connecting seat group and at least four lower fixing grooves, the lower connecting seat group is combined with the lower frame and comprises a plurality of lower connecting seats, the lower fixing grooves are formed after the lower frame is combined with the lower connecting seats, an end of an optional column can be inserted into each lower fixing groove, and each fixing column and the corresponding lower fixing groove can be relatively fixedly positioned by the aid of at least one lower locking assembly. The combined cabinet with the combined structure has the advantages that the structure can be assembled or detached, and the combined cabinet is convenient to transport.
Owner:曾庆照

Hanging ring structure for physical exercise

The invention provides a hanging ring structure for physical exercise and belongs to the technical field of sports equipment. The problem is solved that the height of an existing hanging ring is inconvenient to adjust. According to the hanging ring structure for physical exercise, an adjustment hole is axially formed in the lower end face of an adjustment base, an adjustment rod is fixedly connected to a hanging ring body, and a clamping groove is axially formed in the outer peripherical face of the adjustment rod; the adjustment rod extends into the adjustment hole, grooves are formed in thetwo opposite sides of the inner side wall of the adjustment hole in the radical direction of the adjustment base, and positioning blocks are arranged in the grooves; the grooves are provided with gapsfor the positioning blocks to slide in the axial direction of the grooves, through holes communicated with the grooves are formed in the outer peripherical face of the adjustment base in the radicaldirection, and one end of each bolt penetrates through the corresponding through hole and is fixed into the corresponding positioning block; springs sleeve the bolts, one end of each spring abuts against the corresponding positioning block, and the other end of each spring abuts against the adjustment base. According to the hanging ring structure, the convenience of height adjustment of the hanging ring body is greatly improved, and it is guaranteed that a protrusion can be accurately inserted in the clamping groove.
Owner:HUNAN UNIV OF SCI & TECH

Grease stain resistance separation-type high-speed energy-saving spinning spindle

The invention discloses a grease stain resistance separation-type high-speed energy-saving spinning spindle. The grease stain resistance separation-type high-speed energy-saving spinning spindle is characterized by comprising a spindle bolster base, an inner spindle bolster tube, a sealing ring, an outer spindle bolster tube, an inner and outer spindle bolster tube sealing cover, a support block,a through hole, an outer spindle bolster oil valve and a spindle bottom oil valve; the inner spindle bolster tube, the outer spindle bolster tube and the spindle bolster base are each an independent body and form a spindle bolster together, wherein the lower end of the inner spindle bolster tube tightly cooperates with the outer spindle bolster tube, the portion between the inner spindle bolster tube and the outer spindle bolster tube is filled with damping oil, oil filling operation is completed by the outer spindle bolster oil valve, and the upper end of the inner spindle bolster tube and the upper end of the outer spindle bolster tube are sealed by the inner and outer spindle bolster tube sealing cover. The grease stain resistance separation-type high-speed energy-saving spinning spindle has the advantages that due to the separation-type spindle bolster, the washing and oil filling problems of spinning spindles are effectively solved; due to the inner spindle bolster tube, oil storage space is enlarged, the oil change period of the spindle is prolonged, the high-speed vibration absorption and energy saving function of a dual vibration absorption system is significant, and not only can actual engineering requirements in the textile spinning be met to fill a technical gap, but also great social and economic benefits can be generated.
Owner:TIANJIN POLYTECHNIC UNIV
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